ASTRA LA®
Silicone Leveling Agents
Silicone leveling agents to improve flow and leveling of coatings. Eliminate brush marks, orange peel, craters. High compatibility with various binders, weather resistance.
Why silicone leveling agents?
Brush marks, orange peel and crater defects are the hallmark of poor leveling. Silicone leveling agents migrate to the surface during film formation and create a smooth, even, defect-free finish. They also improve slip and weather resistance.
Key Benefits
- Eliminates brush marks and orange peel
- Crater prevention
- Surface slip and scratch resistance
- Weather and UV resistance
- High compatibility across binder systems
- Anti-graffiti grades available
Impact on Coating Performance
Silicone leveling agents from ASTRA LA bring premium-grade finish to coatings — the kind that customers can see and feel. Essential for automotive, furniture and high-end industrial applications.
O – organosoluble, WB – water-based, RC – radiation-curable
Product Catalog
Download TDS| Active % | Feature | TDS | Samples | |||
|---|---|---|---|---|---|---|
| ASTRA LA-4201 | BYK-378 | Solvent-based / Water-based / Radiation-curable | 100% | Universal additive, suitable for all types of systems. Good compatibility, provides slip, reduces surface tension, affects the orientation of matting agents. | ||
| ASTRA LA-4501 | BYK-378 | Solvent-based / Water-based / Radiation-curable | 100% | Prevents cratering, significantly reduces surface tension, affects the orientation of matting agents. Provides alignment and does not stabilize foam. |
Articles about ASTRA LA®
Viscosity Drift in Paints: Causes, Testing and Control
Viscosity Drift in Paints: Causes, Testing and Control ! Technician lifts thick paint with spatula Viscosity drift is the change in a coating's consistency between the end of production and the moment of application.
Read
Gloss Haze in Coatings: 5 Causes, From Polish to Formulation
Gloss Haze in Coatings: 5 Causes, From Polish to Formulation ! Hazy band across a glossy black coating Reflection haze is a milky scattering of light near the specular highlight on an otherwise glossy film, and when it appears right after polishing or application, an isopropyl alcohol wipe followed…
Read
Formulators: Tune Thixotropy to Reach 90% Recovery in Under 1 Minute
Thixotropy control means managing two linked phenomena: structural breakdown under shear and recovery once shear stops, and we tune both through formulation chemistry and process parameters rather than one alone. The primary levers are rheology modifiers, dispersants, and polycarboxylate ether dosing, paired with measurement targets such as recovery ratio and recovery time from a [3-interval thixotropy test](https://wiki.anton-paar.com/us-en/basics-of-thixotropy/). When done correctly, this delivers anti-sag performance, reliable pumpability, and controlled leveling in the same formulation.
ReadNeed technical assistance?
Our team can help you select the right additive for your formulation.
Contact Technical Support